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JP2021518303A |
The present invention is a communication system configured to enable the establishment of unidirectional or bidirectional optical communication, more specifically optical communication using a Li-Fi type communication protocol. With resp...
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JP6908678B2 |
A transmitter-receiver includes an electronic chip a mixer for mixing the frequency of a received radio frequency signal with that of an oscillating signal supplied by a first frequency synthesizer in, a switch having two inputs connecte...
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JP6906759B2 |
To achieve acoustic communication which is high in reliability.The acoustic communication system comprises: an acoustic transmitter for outputting an output acoustic signal (Sout) having a reference signal (RS) having a predetermined bit...
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JP6905857B2 |
To make it possible to easily establish a transmission/reception environment between an electronic device (smart phone) and an information terminal (electronic watch) and check a two-way reception situation in communication between both ...
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JP2021100251A |
To provide a method and system for an ultrasonic proximity service capable of sufficient every day use of ultrasonic frequencies.A computing device 10, which operates to detect an ultrasonic signal and, based on the ultrasonic signal, pe...
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JP6888780B2 |
To make it possible to perform underwater acoustic communication with good quality.A receiving unit 21 receives transmission data 34 transmitted by an underwater transmitter 10. A received data generation unit 22 converts each of a plura...
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JP6883562B2 |
To provide an information guidance system that enables a user who do not understand a guidance voice to acquire guidance information without fail.An acoustic signal SM is generated by synthesizing a guidance voice signal SV obtained by c...
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JP2021083067A |
To provide a signal processing method and a signal processing system.A transmission code having a finite length including the real part of a complex number series as a first component and the imaginary part of the complex number series a...
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JP2021078011A |
To transmit information from a first medium to a second medium.An information transmitting method includes the steps of: applying a first electromagnetic wave including transmission information propagating in a first medium to a conversi...
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JP2021078000A |
To provide a tag identification system and a tag for identification that can be a low-cost configuration.A tag identification system 1 comprises: a tag for identification; an ultrasonic transducer 31 as a vibration providing device; a re...
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JP2021066285A |
To provide an underwater control system for a construction machine capable of securing communication stability when controlling a construction machine for carrying out work underwater by using radio communication technology.An underwater...
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JP6855571B2 |
Embodiments disclosed herein may be implemented in the form of a method or corresponding apparatus for receiving or transmitting network communications carried at acoustic wavelengths via an acoustic medium. The corresponding method or a...
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JP6841122B2 |
To reduce a delay of a predetermined operation for a content in an execution apparatus that executes a predetermined operation in accordance with a content output from an output device.In an information processing system 100, an executio...
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JP6836651B2 |
A system can receive a request for service from the computing device of a requesting user of the network service. The system can select a driver to provide the service for the requesting user, and transmit an invitation to the computing ...
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JP6832218B2 |
To reduce instability due to environmental variation and thereby perform in-vivo information transmission stably with high quality.A signal generation unit 11 generates a signal wave by modulating a carrier wave on the basis of communica...
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JP6825642B2 |
To transmit information to a terminal device without requiring a receiver specially used for radio communication.A reproduction system 100 is provided with an information extraction unit 206 that acquires, by wire, a speech signal repres...
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JP6809319B2 |
To make it possible to embed transmission information in an acoustic signal and transmit it even in a poor environment.In an information transmission device 1, an embedding unit 13 repetitively embeds the same transmission information in...
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JP2020204950A |
To provide an information processing system which allows authentication processing for establishing communication between two devices with an easier method.The present invention is directed to an information processing system having a fi...
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JP6802541B2 |
To provide a mechanical oscillation correction device for an acoustic device.An attitude sensor 4 detects each of an angle, an angular speed, or an angular acceleration in a pitch operation direction, an angle, an angular speed, or an an...
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JP2020536423A |
The sound wave signal encodes a symbol sequence representing a binary message for delivery as audio content. Symbols are associated with frequency characteristics that are transmitted over time. Two carriers (A / C, B / D) are transmitte...
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JP6790581B2 |
To improve transmission rate of acoustic communication between an underwater vehicle and a mother ship.In an acoustic communication method, acoustic communication repeaters 6a, 6b, 6c including upper acoustic communication devices 31a, 3...
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JP2020188411A |
To increase the percentage of the display screen of a display device, when viewing the display of the display screen from its front side.In a display system having a remote controller 2, a display device (personal computer 1) includes a ...
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JP6787177B2 |
To reduce the impact of a sonic wave on the periphery of an output device, in a positional information management system for managing the positional information of a terminal acquiring the sonic wave outputted from the output device.The ...
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JP6776645B2 |
An information providing system for providing information associated with a transport state of a transportation vehicle comprises: an audio information storage unit for storing a plurality of audio information items embedded in the audib...
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JP6770737B2 |
Provided herein are an acoustic communication method and an acoustic communication system that transmit and receive two or more types of data while transmitting a response upon receipt of acoustic waves using one set of acoustic communic...
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JP6771520B2 |
To improve the reliability of a broadcasting system using a sound watermark.A broadcasting system includes: a signal processing device 1 for generating a broadcast signal in which identification information is superposed on an acoustic s...
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JP2020150538A |
To enable information notification to an information terminal while suppressing an influence upon an audible sound in a broadcast system in which an available frequency band is restricted like disaster prevention broadcast equipment.In t...
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JP2020150390A |
To set an information processing unit collectively and simply.An information processing unit capable of user setting includes an acoustic input part 51 for sensing sonic, and converting into an acoustic signal, a data acquisition part 52...
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JP2020127159A |
To provide a transmission/reception system and a transmission/reception method of broadcasting signals suitable for terrestrial UHD broadcasting, which can increase the information transmission capacity without increasing the effective f...
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JP2020120285A |
To allow for communication between an apparatus received in a control board and an external terminal, without opening the control board door.A communication system includes one or more controller apparatus 1 received in a control board 5...
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JP6729169B2 |
To provide an underwater communication system and an underwater communication device that enable a reception side to readily detect the position of a communication apparatus at a transmission side.A first communication device 1 includes:...
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JP6707737B2 |
To provide an underwater ultrasonic communication device using OFDM modulation resistant to position fluctuation, by preventing deterioration of transmission performance incident to position fluctuation of a transmitter or a receiver.An ...
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JP6661706B2 |
The various embodiments of the present invention disclose a system and method for initiating communication between different devices using audio frequency. The invention enables buzzers to generate monotone or limited tones for communica...
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JP2020036265A |
To provide a voice communication system that can easily construct a voice failure detection environment and can identify a failure point in a short time.Connection of a plurality of devices 1 to n that input and output a sound source sig...
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JP6639093B2 |
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JP6638820B2 |
In order to provide an underwater radio communication system which stably uses wideband modulated signal to communicate with electromagnetic waves, this underwater radio communication system 1, for communicating underwater between a tran...
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JP2020010230A |
To provide an electrical field communication system capable of detecting how an object is operating by a simple configuration.An entrance control system 1 is an electrical field communication system including a transmitter 10 for transmi...
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JP6623258B1 |
To provide an underwater communication system, an underwater communication method and a computer program which suppress a decrease in the stability of communication between mobile bodies in water. A first antenna unit including an antenn...
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JP6596144B2 |
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JP6577429B2 |
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JP6578455B2 |
The present invention relates to a method of scheduling for an underwater wireless mobile network. Particularly, the present invention relates to a method of scheduling for an underwater wireless mobile network, whereby the method may co...
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JP2019524037A |
The present invention relates to a method of encoding an information symbol of the alphabet into an irregular acoustic signal. The coding dictionary takes a set of irregular signals (110), filters the irregular signals by an equivalent f...
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JP6557902B2 |
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JP6553174B2 |
A wide band through-body communication system communicates data through the body ultrasonically. A MEMS device such as a CMUT transducer is configured to transmit and/or receive ultrasonic data signals within a broad band of operating fr...
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JP6544447B2 |
A pressure sensor element and a receiving circuit are formed on an IC chip. A transmitting circuit and a piezoelectric element of an actuator are respectively formed on a transmitting chip and a piezoelectric chip. The piezoelectric chip...
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JP6505953B2 |
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JP6484958B2 |
An audio processing device has an information extractor that extracts identification information from a first audio signal in a first frequency band that includes an audio component of a sound for reproduction and an audio component incl...
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JP6475869B2 |
A grooming appliance (100) comprising: a grooming mechanism (102) for grooming a user; a motor (104) arranged to operate the grooming mechanism; and a controller (106) configured to modulate a data signal into sound produced by the groom...
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JP2019012884A |
To execute despreading processing quickly.An ultrasonic receiving device includes a code extraction unit 12 for extracting a spectrum spread reception code as a decoding target code from a spectrum spread signal, a reference code generat...
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JP6454007B2 |
The present invention relates to a device for sound wave communication, which transmits and receives sound waves so as to exchange data. An embodiment of the present invention may comprise: a hardware correction table for setting a corre...
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